What passes through the infraorbital groove?

The infraorbital groove is a bony groove within the maxillary bone located at the posterior aspect of the orbital floor. It transmits the infraorbital nerve, which is a branch of the maxillary division of the trigeminal nerve (CN Vb), as well as the infraorbital artery and vein.

What is the purpose of infraorbital foramen?

In human anatomy, the infraorbital foramen is an opening in the maxillary bone of the skull located below the infraorbital margin of the orbit. It transmits the infraorbital artery and vein, and the infraorbital nerve, a branch of the maxillary nerve.

Where is infraorbital notch?

maxillary bone
The infraorbital foramen is located in the maxillary bone. It is the anterior opening of the infraorbital canal, which is the anterior continuation of the infraorbital groove, which course through the floor of the orbit. The canal may reside entirely in the maxillary sinus, suspended from the sinus roof by a mesentery.

What is the infraorbital Ridge?

Anatomical terminology The infraorbital margin is the lower margin of the eye socket.

What passes through superior orbital fissure?

This fissure, which separates the greater and lesser wings of the sphenoid and lies between the optic foramen and the foramen rotundum, provides passage to the three motor nerves to the extraocular muscles of the orbit: oculomotor nerve (CN III), trochlear nerve (CN IV), and abducens nerve (CN VI).

What are the main contents of the orbit?

The orbital cavity contains the globe, nerves, vessels, lacrimal gland, extraocular muscles, tendons, and the trochlea as well as fat and other connective tissue….The following seven bones form the orbit:

• Sphenoid.
• Frontal.
• Zygomatic.
• Ethmoid.
• Lacrimal.
• Maxilla.
• Palatine.

How do you get infraorbital foramen?

Step-by-Step Procedure

1. Palpate the infraorbital foramen on the lateral aspect of the maxilla, rostral to the medial canthus of the eye.
2. In larger animals, the infraorbital neurovascular bundle can be palpated under the skin as it leaves the infraorbital canal.

Where does the infraorbital artery come from?

The infraorbital artery arises from the pterygopalatine part of the maxillary artery. The artery proceeds through the infraorbital foramen and emerges on the face to supply the inferior palpebral area, the lateral side of the nose, and the superior labial area.

Are there two infraorbital foramen?

It is evident that the majority of infraorbital foramina are located lateral to the SOF/N (93.0% on the right side and 91.1% on the left side). Both IOF and SOF/N were located in the same vertical plane in 4.7% on the right side and in 8.9% on the left side of the total skulls.

How do you palpate infraorbital foramen?

To palpate the infraorbital foramen, have the patient look straight ahead and imagine a line drawn vertically (sagittally) from the pupil down toward the inferior border of the infraorbital ridge. Keep the palpating finger in place over the inferior border on the infraorbital rim for the remaining steps.

Is infraorbital nerve motor or sensory?

The infraorbital nerve is a purely sensory nerve derived from the second maxillary division of the trigeminal nerve. The infraorbital nerve is a terminal branch that exits the skull through the foramen rotundum to enter the pterygopalatine fossa.

Where does infraorbital artery come from?